All right, I see what you're saying now. But the pros you're referring to ski so many different rail set ups of all sizes and are almost always publicized, so you would expect to see some of the same tech stuff Andreas' is doing if they were capable of it.
Basically I'm not entirely convinced that a lack of opportunity is what's preventing others from doing the same tricks as Andreas; they either aren't interested in doing those tricks (which I can appreciate since a lot of it is just spinning and pretzelling (yawn)) or they just aren't able to.
Either way this is a pretty useless point to discuss.